Ideal Temperature for Smooth hydrangea
Images of Smooth hydrangea
Signs of Cold Temperatures in Smooth hydrangea
Symptoms
Smooth hydrangea tolerates cold well and flourishes when temperatures are above 65℉. In winter, it needs to stay above 50℉. If the temperature drops below 32℉, while no immediate changes might be seen in winter, branches can become brittle and dry in spring, preventing new growth.
Solutions
In spring, remove any dead branches that haven't produced new leaves.
Signs of High Temperatures in Smooth hydrangea
Symptoms
In summer, Smooth hydrangea should be maintained below 75℉. When temperatures go above 85℉, the plant's leaves might lighten in color, their tips could dry and shrivel, and the plant becomes more prone to sun damage.
Solutions
Remove any parts that are sunburned and dried. Relocate the plant to a spot offering protection from the midday and afternoon sun, or use a shade cloth for cover. Water the plant in the morning and evening to maintain soil moisture.
